Dr Pablo Fernandez Miaja

Pablo Fernandez Miaja
Dr Pablo Fernandez Miaja

Manchester was one of the places where the Industrial Revolution begun and that can be felt in the streets...

Project title: PowerGaN

Before I joined Power Conversion as a Research Associate …

Before starting this RA position I have been a PhD. Student (2008-2012) and a RA at the University of Oviedo (Spain). Most of my research experience, both as an student and RA, was involved in Envelope Modulators, very fast DC/DC converters that provide power to a Radio Frequency Power Amplifier with a voltage which depends on the communication signal that the RFPA is processing. Apart from that I also worked on low voltage, low power (100-200 W) DC/DC converters. One of the projects I was also involved in in Spain was a collaborative project among several universities where Gallium Nitride (GaN) and Silicon Carbide (SiC) devices where designed and evaluated in Power Electronic Applications. Looking for some opportunities in Academia in the field of Power Electronics in Europe I came across an offer within the Power Conversions group that seem to fit within my expertise.

What were your first impressions of the university and the city?

The University is a powerful institution with a lot of history behind. The same applies to the city. Manchester was one of the places where Industrial Revolution began and that can be felt in the streets and in places like the Museum of Science and Industry (MOSI). At the same time, while preserving its heritage, Manchester is full of young people and it is a vibrant place.

Tell us a little about your position and project …

My position involves mainly the testing and characterization of Gallium Nitride devices for Power Electronic applications. These devices are currently being designed and fabricated by a consortium of UK Universities (Glasgow, Sheffield, Cambridge, Bristol, Nottingham, Liverpool and Manchester). Eventually the results of the analysis and testing will be feedback to the designers in order to improve the devices. 

The skills that I am currently using in this project are basic Electrical and Electronic circuit analysis. Combined with some expertise in the design of the set-up for the different experiments performed. Besides that, I have some limited background in how Electronic devices, and GaN HEMTS in particular, work. This which enables me to realize the basic trade-offs that semiconductor designers face when designing a device. 

The thing I enjoy most about working in the Group is …

The collaboration with different people from different Universities and backgrounds provides me with a glimpse of the different parts (material science, fabrication of electronic devices, packaging, electrical testing…) that are involved in the fabrication of electronic devices. Working in Manchester in this project has enabled me to contact to people who are currently designing semiconductor devices, which was a field in which I have a very limited experience.

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